National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Encapsulation of active agents into natural polymers
Sedlaříková, J. ; Krejčí, J. ; Krhovská, D. ; Peer, Petra
Recently encapsulation has been intensively investigated to achieve a better absorbability and prolong efficiency of active agents. The aim of this work was to prepare the systems based on natural polymers zein and chitosan with active substances and observe the effect of individual components on the resultant physical and chemical properties of the encapsulation
Rheology and texture of sun lotions
Štern, Petr ; Panovská, Z. ; Morávková, Tereza
All analysed sun lotions were stable. Psychorheology was applied as a suitable complex method. Rheological parameters were compared to sensory texture attributes. All relationships were statistically significant (correlation coefficients 0.89 – 0.99). Fast and objective rheological analysis could replace time and money consuming sensory assessment.
Rheological and sensory properties of cosmetics creams
Morávková, T. ; Štern, Petr ; Pokorný, J. ; Šedivá, A. ; Panovská, Z.
By the analysis of flow curves at low shear rates there was found that flow properties of cosmetic cremes under study correspond to a rheological Herschel-Bulkley model. It was shown that emulsion composition, including small differences in the contents of components, influnces the rheological properties of cremes.
Textural and rheological properties of lipsticks
Štern, Petr ; Šedivá, A. ; Morávková, T. ; Panovská, Z. ; Pokorný, J.
The influence of temperature was proven for the rheological indicators unlike the sensorical ones. Some of these indicators were mutually in close relations. As it was expected, close correlation was found between spreadibility on the lips, acceptability of texture and overall impression.
Psychorheology of sun-protected milk
Štern, Petr ; Pokorný, J.
Psychorheology is the relationship between consumer preferences and rheological properties of materials. Sun-protected milks from the point of view of rhelogy are pseudoplastic liquids. All analysed samples show good spreadability and stability by dynamical measurements. Apparent viscosity depended on the temperature and on the pigment concentration.

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